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| author | Kevin O'Connor <kevin@koconnor.net> | 2024-01-20 20:04:16 -0500 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2024-01-25 11:05:11 -0500 |
| commit | f1982edcd5e68328a824ae9998e63778b08581e7 (patch) | |
| tree | 497700f54344ffdec290d226207a30ca0e264b49 /src/rp2040/rp2040_link.lds.S | |
| parent | 44e79e0c37a440212a1b7f974adbdbe250e91f83 (diff) | |
| download | kutter-f1982edcd5e68328a824ae9998e63778b08581e7.tar.gz kutter-f1982edcd5e68328a824ae9998e63778b08581e7.tar.xz kutter-f1982edcd5e68328a824ae9998e63778b08581e7.zip | |
rp2040: Load vectortable into ram
Load the interrupt vector table into ram at startup. This reduces the
chance of a flash cache access causing timing instability.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'src/rp2040/rp2040_link.lds.S')
| -rw-r--r-- | src/rp2040/rp2040_link.lds.S | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/rp2040/rp2040_link.lds.S b/src/rp2040/rp2040_link.lds.S index fd178847..9b0264a2 100644 --- a/src/rp2040/rp2040_link.lds.S +++ b/src/rp2040/rp2040_link.lds.S @@ -37,6 +37,12 @@ SECTIONS . = ALIGN(4); _data_flash = .; + .ram_vectortable (NOLOAD) : { + _ram_vectortable_start = .; + . = . + ( _text_vectortable_end - _text_vectortable_start ) ; + _ram_vectortable_end = .; + } > ram + .data : AT (_data_flash) { . = ALIGN(4); |